[safnog] Weekly Routing Table Report

Routing Analysis Role Account cscora at apnic.net
Fri May 4 18:03:19 UTC 2018


This is an automated weekly mailing describing the state of the Internet
Routing Table as seen from APNIC's router in Japan.

The posting is sent to APOPS, NANOG, AfNOG, SANOG, PacNOG, SAFNOG
TZNOG, MENOG, BJNOG, SDNOG, CMNOG, LACNOG, IRNOG and the RIPE Routing WG.

Daily listings are sent to bgp-stats at lists.apnic.net

For historical data, please see http://thyme.rand.apnic.net.

If you have any comments please contact Philip Smith <pfsinoz at gmail.com>.

Routing Table Report   04:00 +10GMT Sat 05 May, 2018

Report Website:     http://thyme.rand.apnic.net
Detailed Analysis:  http://thyme.rand.apnic.net/current/

Analysis Summary
----------------

BGP routing table entries examined:                              698222
    Prefixes after maximum aggregation (per Origin AS):          268829
    Deaggregation factor:                                          2.60
    Unique aggregates announced (without unneeded subnets):      336897
Total ASes present in the Internet Routing Table:                 60652
    Prefixes per ASN:                                             11.51
Origin-only ASes present in the Internet Routing Table:           52419
Origin ASes announcing only one prefix:                           22938
Transit ASes present in the Internet Routing Table:                8233
Transit-only ASes present in the Internet Routing Table:            267
Average AS path length visible in the Internet Routing Table:       4.0
    Max AS path length visible:                                      30
    Max AS path prepend of ASN ( 30873)                              28
Prefixes from unregistered ASNs in the Routing Table:                51
    Number of instances of unregistered ASNs:                        51
Number of 32-bit ASNs allocated by the RIRs:                      22423
Number of 32-bit ASNs visible in the Routing Table:               18107
Prefixes from 32-bit ASNs in the Routing Table:                   75449
Number of bogon 32-bit ASNs visible in the Routing Table:            14
Special use prefixes present in the Routing Table:                    3
Prefixes being announced from unallocated address space:            297
Number of addresses announced to Internet:                   2858741122
    Equivalent to 170 /8s, 100 /16s and 237 /24s
    Percentage of available address space announced:               77.2
    Percentage of allocated address space announced:               77.2
    Percentage of available address space allocated:              100.0
    Percentage of address space in use by end-sites:               98.9
Total number of prefixes smaller than registry allocations:      232759

APNIC Region Analysis Summary
-----------------------------

Prefixes being announced by APNIC Region ASes:                   191019
    Total APNIC prefixes after maximum aggregation:               54116
    APNIC Deaggregation factor:                                    3.53
Prefixes being announced from the APNIC address blocks:          189798
    Unique aggregates announced from the APNIC address blocks:    77981
APNIC Region origin ASes present in the Internet Routing Table:    8773
    APNIC Prefixes per ASN:                                       21.63
APNIC Region origin ASes announcing only one prefix:               2452
APNIC Region transit ASes present in the Internet Routing Table:   1307
Average APNIC Region AS path length visible:                        4.0
    Max APNIC Region AS path length visible:                         29
Number of APNIC region 32-bit ASNs visible in the Routing Table:   3737
Number of APNIC addresses announced to Internet:              766870786
    Equivalent to 45 /8s, 181 /16s and 133 /24s
APNIC AS Blocks        4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations)  23552-24575, 37888-38911, 45056-46079, 55296-56319,
                       58368-59391, 63488-64098, 64297-64395, 131072-137529
APNIC Address Blocks     1/8,  14/8,  27/8,  36/8,  39/8,  42/8,  43/8,
                        49/8,  58/8,  59/8,  60/8,  61/8, 101/8, 103/8,
                       106/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8,
                       116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8,
                       123/8, 124/8, 125/8, 126/8, 133/8, 150/8, 153/8,
                       163/8, 171/8, 175/8, 180/8, 182/8, 183/8, 202/8,
                       203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8,
                       222/8, 223/8,

ARIN Region Analysis Summary
----------------------------

Prefixes being announced by ARIN Region ASes:                    207973
    Total ARIN prefixes after maximum aggregation:                99038
    ARIN Deaggregation factor:                                     2.10
Prefixes being announced from the ARIN address blocks:           209004
    Unique aggregates announced from the ARIN address blocks:     98978
ARIN Region origin ASes present in the Internet Routing Table:    18167
    ARIN Prefixes per ASN:                                        11.50
ARIN Region origin ASes announcing only one prefix:                6717
ARIN Region transit ASes present in the Internet Routing Table:    1794
Average ARIN Region AS path length visible:                         3.6
    Max ARIN Region AS path length visible:                          20
Number of ARIN region 32-bit ASNs visible in the Routing Table:    2346
Number of ARIN addresses announced to Internet:              1104906784
    Equivalent to 65 /8s, 219 /16s and 138 /24s
ARIN AS Blocks         1-1876, 1902-2042, 2044-2046, 2048-2106
(pre-ERX allocations)  2138-2584, 2615-2772, 2823-2829, 2880-3153
                       3354-4607, 4865-5119, 5632-6655, 6912-7466
                       7723-8191, 10240-12287, 13312-15359, 16384-17407
                       18432-20479, 21504-23551, 25600-26591,
                       26624-27647, 29696-30719, 31744-33791
                       35840-36863, 39936-40959, 46080-47103
                       53248-55295, 62464-63487, 64198-64296, 393216-397212
ARIN Address Blocks      3/8,   4/8,   6/8,   7/8,   8/8,   9/8,  11/8,
                        12/8,  13/8,  15/8,  16/8,  17/8,  18/8,  19/8,
                        20/8,  21/8,  22/8,  23/8,  24/8,  26/8,  28/8,
                        29/8,  30/8,  32/8,  33/8,  34/8,  35/8,  38/8,
                        40/8,  44/8,  45/8,  47/8,  48/8,  50/8,  52/8,
                        53/8,  54/8,  55/8,  56/8,  57/8,  63/8,  64/8,
                        65/8,  66/8,  67/8,  68/8,  69/8,  70/8,  71/8,
                        72/8,  73/8,  74/8,  75/8,  76/8,  96/8,  97/8,
                        98/8,  99/8, 100/8, 104/8, 107/8, 108/8, 128/8,
                       129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8,
                       137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8,
                       146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8,
                       157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8,
                       165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8,
                       173/8, 174/8, 184/8, 192/8, 198/8, 199/8, 204/8,
                       205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8,
                       216/8,

RIPE Region Analysis Summary
----------------------------

Prefixes being announced by RIPE Region ASes:                    190494
    Total RIPE prefixes after maximum aggregation:                91847
    RIPE Deaggregation factor:                                     2.07
Prefixes being announced from the RIPE address blocks:           186369
    Unique aggregates announced from the RIPE address blocks:    111090
RIPE Region origin ASes present in the Internet Routing Table:    25164
    RIPE Prefixes per ASN:                                         7.41
RIPE Region origin ASes announcing only one prefix:               11421
RIPE Region transit ASes present in the Internet Routing Table:    3507
Average RIPE Region AS path length visible:                         4.1
    Max RIPE Region AS path length visible:                          30
Number of RIPE region 32-bit ASNs visible in the Routing Table:    6956
Number of RIPE addresses announced to Internet:               715766144
    Equivalent to 42 /8s, 169 /16s and 185 /24s
RIPE AS Blocks         1877-1901, 2043, 2047, 2107-2136, 2585-2614
(pre-ERX allocations)  2773-2822, 2830-2879, 3154-3353, 5377-5631
                       6656-6911, 8192-9215, 12288-13311, 15360-16383
                       20480-21503, 24576-25599, 28672-29695
                       30720-31743, 33792-35839, 38912-39935
                       40960-45055, 47104-52223, 56320-58367
                       59392-61439, 61952-62463, 64396-64495
                       196608-207259
RIPE Address Blocks      2/8,   5/8,  25/8,  31/8,  37/8,  46/8,  51/8,
                        62/8,  77/8,  78/8,  79/8,  80/8,  81/8,  82/8,
                        83/8,  84/8,  85/8,  86/8,  87/8,  88/8,  89/8,
                        90/8,  91/8,  92/8,  93/8,  94/8,  95/8, 109/8,
                       141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8,
                       193/8, 194/8, 195/8, 212/8, 213/8, 217/8,

LACNIC Region Analysis Summary
------------------------------

Prefixes being announced by LACNIC Region ASes:                   90085
    Total LACNIC prefixes after maximum aggregation:              19812
    LACNIC Deaggregation factor:                                   4.55
Prefixes being announced from the LACNIC address blocks:          91488
    Unique aggregates announced from the LACNIC address blocks:   40942
LACNIC Region origin ASes present in the Internet Routing Table:   7111
    LACNIC Prefixes per ASN:                                      12.87
LACNIC Region origin ASes announcing only one prefix:              1966
LACNIC Region transit ASes present in the Internet Routing Table:  1306
Average LACNIC Region AS path length visible:                       4.7
    Max LACNIC Region AS path length visible:                        25
Number of LACNIC region 32-bit ASNs visible in the Routing Table:  4651
Number of LACNIC addresses announced to Internet:             172820960
    Equivalent to 10 /8s, 77 /16s and 9 /24s
LACNIC AS Blocks       26592-26623, 27648-28671, 52224-53247,
                       61440-61951, 64099-64197, 262144-268700 + ERX transfers
LACNIC Address Blocks  177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8,
                       191/8, 200/8, 201/8,

AfriNIC Region Analysis Summary
-------------------------------

Prefixes being announced by AfriNIC Region ASes:                  18598
    Total AfriNIC prefixes after maximum aggregation:              3969
    AfriNIC Deaggregation factor:                                  4.69
Prefixes being announced from the AfriNIC address blocks:         21266
    Unique aggregates announced from the AfriNIC address blocks:   7658
AfriNIC Region origin ASes present in the Internet Routing Table:  1142
    AfriNIC Prefixes per ASN:                                     18.62
AfriNIC Region origin ASes announcing only one prefix:              381
AfriNIC Region transit ASes present in the Internet Routing Table:  230
Average AfriNIC Region AS path length visible:                      4.4
    Max AfriNIC Region AS path length visible:                       21
Number of AfriNIC region 32-bit ASNs visible in the Routing Table:  417
Number of AfriNIC addresses announced to Internet:             97989120
    Equivalent to 5 /8s, 215 /16s and 50 /24s
AfriNIC AS Blocks      36864-37887, 327680-328703 & ERX transfers
AfriNIC Address Blocks  41/8, 102/8, 105/8, 154/8, 196/8, 197/8,

APNIC Region per AS prefix count summary
----------------------------------------

   ASN   No of nets  /20 equiv  MaxAgg  Description
  4538         5392       4192      74  ERX-CERNET-BKB China Education and Rese
  7545         4393        415     430  TPG-INTERNET-AP TPG Telecom Limited, AU
  4766         2892      11137     791  KIXS-AS-KR Korea Telecom, KR
  7552         2807       1156      71  VIETEL-AS-AP Viettel Group, VN
  9829         2761       1498     543  BSNL-NIB National Internet Backbone, IN
  9394         2614       4922      26  CTTNET China TieTong Telecommunications
 45899         2528       1574     160  VNPT-AS-VN VNPT Corp, VN
 17974         2293        928      79  TELKOMNET-AS2-AP PT Telekomunikasi Indo
  9808         2190       8699      32  CMNET-GD Guangdong Mobile Communication
  4755         2100        417     206  TATACOMM-AS TATA Communications formerl

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC

ARIN Region per AS prefix count summary
---------------------------------------

   ASN   No of nets  /20 equiv  MaxAgg  Description
  6327         3389       1323      84  SHAW - Shaw Communications Inc., CA
 22773         3289       2968     147  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
 18566         2168        405     109  MEGAPATH5-US - MegaPath Corporation, US
 20115         2099       2503     455  CHARTER-NET-HKY-NC - Charter Communicat
 16509         2086       4590     650  AMAZON-02 - Amazon.com, Inc., US
 11492         2005        240     450  CABLEONE - CABLE ONE, INC., US
   209         1969       5070     607  CENTURYLINK-US-LEGACY-QWEST - Qwest Com
 30036         1968        339     177  MEDIACOM-ENTERPRISE-BUSINESS - Mediacom
 16625         1760        862    1261  AKAMAI-AS - Akamai Technologies, Inc., 
  7018         1704      20213    1257  ATT-INTERNET4 - AT&T Services, Inc., US

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN

RIPE Region per AS prefix count summary
---------------------------------------

   ASN   No of nets  /20 equiv  MaxAgg  Description
 12479         4116       1519     499  UNI2-AS, ES
 39891         3778        203      20  ALJAWWALSTC-AS, SA
 20940         2662        719    1958  AKAMAI-ASN1, US
  8551         2079        378      44  BEZEQ-INTERNATIONAL-AS Bezeqint Interne
 12389         2040       1876     707  ROSTELECOM-AS, RU
 34984         2018        334     484  TELLCOM-AS, TR
  9121         1979       1692      19  TTNET, TR
 13188         1609        100      43  TRIOLAN, UA
  6849         1241        355      21  UKRTELNET, UA
  8402         1237        544      14  CORBINA-AS OJSC "Vimpelcom", RU

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE

LACNIC Region per AS prefix count summary
-----------------------------------------

   ASN   No of nets  /20 equiv  MaxAgg  Description
  8151         4445       3387     586  Uninet S.A. de C.V., MX
 10620         3591        542     244  Telmex Colombia S.A., CO
 11830         2647        369      78  Instituto Costarricense de Electricidad
  6503         1612        437      53  Axtel, S.A.B. de C.V., MX
  7303         1517       1025     193  Telecom Argentina S.A., AR
 28573         1036       2251     184  CLARO S.A., BR
  3816         1009        505     123  COLOMBIA TELECOMUNICACIONES S.A. ESP, C
  6147          998        377      31  Telefonica del Peru S.A.A., PE
 11172          927        126      85  Alestra, S. de R.L. de C.V., MX
 18881          909       1074      29  TELEFÔNICA BRASIL S.A, BR

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC

AfriNIC Region per AS prefix count summary
------------------------------------------

   ASN   No of nets  /20 equiv  MaxAgg  Description
 24863         1185        396      45  LINKdotNET-AS, EG
 37611          835        107       9  Afrihost, ZA
 36903          741        372     137  MT-MPLS, MA
 36992          697       1412      42  ETISALAT-MISR, EG
  8452          683       1730      18  TE-AS TE-AS, EG
 24835          608        850      15  RAYA-AS, EG
 37492          452        376      81  ORANGE-, TN
 29571          422         68      10  ORANGE-COTE-IVOIRE, CI
 15399          362         35       7  WANANCHI-, KE
 37342          361         32       1  MOVITEL, MZ

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC

Global Per AS prefix count summary
----------------------------------

   ASN   No of nets  /20 equiv  MaxAgg  Description
  4538         5392       4192      74  ERX-CERNET-BKB China Education and Rese
  8151         4445       3387     586  Uninet S.A. de C.V., MX
  7545         4393        415     430  TPG-INTERNET-AP TPG Telecom Limited, AU
 12479         4116       1519     499  UNI2-AS, ES
 39891         3778        203      20  ALJAWWALSTC-AS, SA
 10620         3591        542     244  Telmex Colombia S.A., CO
  6327         3389       1323      84  SHAW - Shaw Communications Inc., CA
 22773         3289       2968     147  ASN-CXA-ALL-CCI-22773-RDC - Cox Communi
  4766         2892      11137     791  KIXS-AS-KR Korea Telecom, KR
  7552         2807       1156      71  VIETEL-AS-AP Viettel Group, VN

Complete listing at http://thyme.rand.apnic.net/current/data-ASnet

Global Per AS Maximum Aggr summary
----------------------------------

  ASN   No of nets  Net Savings  Description
  7545       4393         3963   TPG-INTERNET-AP TPG Telecom Limited, AU
  8151       4445         3859   Uninet S.A. de C.V., MX
 39891       3778         3758   ALJAWWALSTC-AS, SA
 12479       4116         3617   UNI2-AS, ES
 10620       3591         3347   Telmex Colombia S.A., CO
  6327       3389         3305   SHAW - Shaw Communications Inc., CA
 22773       3289         3142   ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
  7552       2807         2736   VIETEL-AS-AP Viettel Group, VN
  9394       2614         2588   CTTNET China TieTong Telecommunications Corpora
 11830       2647         2569   Instituto Costarricense de Electricidad y Telec

Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet

List of Unregistered Origin ASNs (Global)
-----------------------------------------

Bad AS    Designation  Network              Transit AS  Description
 230105   UNALLOCATED  38.110.79.0/24       23015       CMC180-TOR-AS - Cambridge Merc
  65001   PRIVATE      46.237.40.0/21       13118       ASN-YARTELECOM PJSC Rostelecom
  64513   PRIVATE      62.150.101.0/24       9155       QNET Kuwait, KW
  65537   DOCUMENT     62.162.120.0/24       6821       MT-AS-OWN bul. Orce Nikolov bb
 419333   UNALLOCATED  84.17.91.0/24        41933       IPRAGAZ-AS Istanbul/ TURKEY, T
  65024   PRIVATE      87.103.232.0/24      39407       CHITATELECOM-AS, RU
  65024   PRIVATE      87.103.233.0/24      39407       CHITATELECOM-AS, RU
  65024   PRIVATE      87.103.234.0/24      39407       CHITATELECOM-AS, RU
  65024   PRIVATE      95.189.78.0/24       39407       CHITATELECOM-AS, RU
  65024   PRIVATE      95.189.80.0/22       39407       CHITATELECOM-AS, RU

Complete listing at http://thyme.rand.apnic.net/current/data-badAS

Prefixes from private and non-routed address space (Global)
-----------------------------------------------------------

Prefix             Origin AS  Description
100.66.224.0/19        209     CENTURYLINK-US-LEGACY-QWEST - Qwest Communicati
100.127.16.0/23      28885     OMANTEL-NAP-AS OmanTel NAP, OM
100.127.18.0/23      28885     OMANTEL-NAP-AS OmanTel NAP, OM

Complete listing at http://thyme.rand.apnic.net/current/data-dsua

Advertised Unallocated Addresses
--------------------------------

Network            Origin AS  Description
27.100.7.0/24        56096    UNKNOWN
41.76.136.0/22       37500    -Reserved AS-, ZZ
41.76.136.0/24       37500    -Reserved AS-, ZZ
41.76.138.0/24       37500    -Reserved AS-, ZZ
41.76.139.0/24       37500    -Reserved AS-, ZZ
41.76.140.0/22       37500    -Reserved AS-, ZZ
41.76.140.0/24       37500    -Reserved AS-, ZZ
41.76.141.0/24       37500    -Reserved AS-, ZZ
41.76.142.0/24       37500    -Reserved AS-, ZZ
41.76.143.0/24       37500    -Reserved AS-, ZZ

Complete listing at http://thyme.rand.apnic.net/current/data-add-IANA

Number of prefixes announced per prefix length (Global)
-------------------------------------------------------

 /1:0        /2:0        /3:0        /4:0        /5:0        /6:0       
 /7:0        /8:14       /9:11      /10:37      /11:100     /12:288     
/13:564     /14:1093    /15:1904    /16:13393   /17:7876    /18:13601   
/19:25214   /20:39396   /21:45121   /22:86865   /23:70104   /24:390366  
/25:848     /26:649     /27:648     /28:36      /29:20      /30:17      
/31:4       /32:53      

Advertised prefixes smaller than registry allocations
-----------------------------------------------------

   ASN   No of nets  Total ann.  Description
  6327     3178          3389    SHAW - Shaw Communications Inc., CA
 39891     2946          3778    ALJAWWALSTC-AS, SA
 12479     2860          4116    UNI2-AS, ES
 22773     2545          3289    ASN-CXA-ALL-CCI-22773-RDC - Cox Communications 
 18566     2061          2168    MEGAPATH5-US - MegaPath Corporation, US
 11830     1994          2647    Instituto Costarricense de Electricidad y Telec
 11492     1745          2005    CABLEONE - CABLE ONE, INC., US
 30036     1720          1968    MEDIACOM-ENTERPRISE-BUSINESS - Mediacom Communi
 10620     1601          3591    Telmex Colombia S.A., CO
  8551     1541          2079    BEZEQ-INTERNATIONAL-AS Bezeqint Internet Backbo

Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos

Number of /24s announced per /8 block (Global)
----------------------------------------------

   1:1581      2:840       4:19        5:2840      6:65        7:1      
   8:1116     12:1878     13:185      14:1750     15:28       16:3      
  17:203      18:68       20:49       21:7        23:2650     24:2212   
  25:2        27:2362     31:1973     32:87       35:27       36:505    
  37:2769     38:1451     39:262      40:118      41:3142     42:571    
  43:1944     44:112      45:4422     46:3046     47:204      49:1313   
  50:1056     51:307      52:1020     54:370      55:3        56:12     
  57:42       58:1602     59:991      60:433      61:2162     62:1828   
  63:1795     64:5021     65:2209     66:4666     67:2367     68:1139   
  69:3191     70:1150     71:563      72:2105     74:2715     75:414    
  76:437      77:1551     78:1705     79:1851     80:1511     81:1412   
  82:1077     83:777      84:1055     85:2055     86:589      87:1306   
  88:939      89:2325     90:206      91:6357     92:1172     93:2368   
  94:2382     95:2823     96:658      97:357      98:942      99:133    
 100:80      101:1280    102:47      103:17676   104:3623    105:231    
 106:659     107:1862    108:713     109:2728    110:1605    111:1773   
 112:1275    113:1263    114:1115    115:1632    116:1641    117:1729   
 118:2194    119:1661    120:987     121:1052    122:2450    123:1807   
 124:1430    125:1895    128:1012    129:649     130:457     131:1588   
 132:670     133:195     134:1017    135:224     136:469     137:494    
 138:1924    139:604     140:393     141:695     142:819     143:961    
 144:794     145:461     146:1190    147:780     148:1593    149:703    
 150:726     151:1058    152:768     153:312     154:1066    155:765    
 156:934     157:779     158:657     159:1739    160:933     161:753    
 162:2586    163:554     164:1049    165:1580    166:439     167:1405   
 168:3108    169:800     170:3699    171:433     172:1127    173:1995   
 174:907     175:769     176:1885    177:4053    178:2439    179:1196   
 180:2251    181:2217    182:2393    183:1149    184:987     185:13459  
 186:3625    187:2377    188:2781    189:2017    190:8101    191:1473   
 192:9827    193:5910    194:4767    195:3953    196:2499    197:1454   
 198:5541    199:5880    200:7387    201:4989    202:10349   203:10172  
 204:4561    205:2904    206:3104    207:3206    208:3992    209:3948   
 210:4037    211:2113    212:3009    213:2735    214:952     215:60     
 216:5924    217:2132    218:909     219:628     220:1752    221:993    
 222:1032    223:1249   

End of report



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